Is it weigh then mass or mass then weigh or more

The voltaic cell that s composed of aluminum and silver is shown in the image attached.

We define a voltaic cell as the kind of cell that produces chemical energy from a spontaneous chemical action. We know that the voltaic cell would have a cathode and an anode.

The anode is the point by which current enters the system and the cathode is the point by which current leaves the system. Now we know that the anode is positively charged while the cathode is negatively charged.

In the image that we can see, it is clear that the cell diagram would show that the there is a salt bridge that is made of a salt solution that has the function of preventing the solutions from mixing. The reaction would be composed of two half cells.

Learn more about voltaic cell:https://brainly.com/question/27548531

#SPJ1

1. The mass of magnesium oxide produced would be 6630.5 g.

2. The formula of the iron oxide would be Fe2O3.

1. Calculation of magnesium oxide produced:

The balanced chemical equation for the reaction of magnesium with oxygen is:

2 Mg + O2 → 2 MgO

For 2 g of magnesium:

Number of moles of Mg = mass / molar mass = 2 / 24.31 = 0.082 moles

According to the balanced equation, 2 moles of Mg produce 2 moles of MgO

Therefore, 0.082 moles of Mg will produce 0.082 moles of MgO

Mass of MgO = number of moles of MgO * molar mass of MgO = 0.082 * 40.31 = 3.29 g

For 10 g of magnesium:

Number of moles of Mg = mass / molar mass = 10 / 24.31 = 0.411 moles

According to the balanced equation, 2 moles of Mg produce 2 moles of MgO

Therefore, 0.411 moles of Mg will produce 0.411 moles of MgO

Mass of MgO = number of moles of MgO * molar mass of MgO = 0.411 * 40.31 = 16.54 g

For 4 kg of magnesium:

Number of moles of Mg = mass / molar mass = 4000 / 24.31 = 164.5 moles

According to the balanced equation, 2 moles of Mg produce 2 moles of MgO

Therefore, 164.5 moles of Mg will produce 164.5 moles of MgO

Mass of MgO = number of moles of MgO * molar mass of MgO = 164.5 * 40.31 = 6630.5 g or 6.63 kg

2. Calculation of formula of iron oxide produced:

The balanced chemical equation for the reaction between iron and oxygen is:

4 Fe + 3 O2 → 2 Fe2O3

According to the equation, 4 moles of Fe react with 3 moles of O2 to produce 2 moles of Fe2O3. Therefore, the molar ratio of Fe to O2 is 4:3.

Given that 0.4 moles of Fe react with 0.3 moles of O2, the ratio of Fe to O2 in the reaction is:

Fe:O2 = 0.4/0.3 = 4/3

This ratio is equivalent to the molar ratio in the balanced equation, which means that the reaction produces the stoichiometric amount of Fe2O3. Therefore, the formula of the iron oxide produced is Fe2O3.

More on stoichiometric problems can be found here: https://brainly.com/question/29775083

#SPJ1

The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

Learn more about heat energy:

https://brainly.com/question/31429264

#SPJ1

The enthalpy change, ΔH, of the reaction is  -103 kJ/mol.

The enthalpy change, ΔH, of the reaction is obtained from the bond enthalpies and the equation of the reaction.

Equation of the reaction:  H−H (g) +  Br−Br(g) → 2 H−Br(g)

To estimate ΔH for the reaction is calculated from the formula below:

ΔH = Σ (bonds broken) - Σ (bonds formed)

ΔH = (1 × 436 kJ/mol) + (1 × 193 kJ/mol) - (2 × 366 kJ/mol)

ΔH = 436 kJ/mol + 193 kJ/mol - 732 kJ/mol

ΔH = -103 kJ/mol

Learn more about bond enthalpies at: https://brainly.com/question/29633366

#SPJ1

1. Balanced equation of the reaction = \(3MnO_2(s) + 4Al (s) -- > 2Al_2O_3(s) + 3Mn(s)\)

2. Formulas of reactants

    solid manganese (IV) oxide = \(MnO_2 (s)\)

    solid aluminum metal = \(Al(s)\)

    solid manganese = \(Mn (s)\)

    solid aluminum oxide = \(Al_2O_3 (s)\)

A balanced chemical equation agrees with the law of conservation. In other words, the number of participating atoms must balance between the reactants and the products of the same equation.

Formula for solid manganese (IV) oxide = \(MnO_2 (s)\)

Formula for solid aluminum metal = \(Al(s)\)

Formula for solid manganese = \(Mn (s)\)

Formula for solid aluminum oxide = \(Al_2O_3 (s)\)

Thus, the balanced equation for the reaction is written as:

\(3MnO_2(s) + 4Al (s) -- > 2Al_2O_3(s) + 3Mn(s)\)

One can see from the that the number of atoms of each element in the reactants is equal to the number of atoms of the same elements in the product.

More on balancing chemical equations can be found here: https://brainly.com/question/28294176

#SPJ1

Reagents that are entirely consumed by a chemical reaction are known as limiting reagents.

Thus, They are additionally known as limiting reactants or limiting agents. A predetermined quantity of reactants are necessary for the reaction to be completed, according to the stoichiometry of chemical reactions.

In the aforementioned reaction, 2 moles of ammonia are created when 3 moles of hydrogen gas react with 1 mole of nitrogen gas.

In most cases, this reactant dictates when the reaction will end. The reaction stoichiometry can be used to determine the precise quantity of reactant that will be required to react with another element. The limiting agent is determined by the mole ratio rather than the mass of the reactants.

Thus, Reagents that are entirely consumed by a chemical reaction are known as limiting reagents.

Learn more about Chemical reaction, refer to the link:
https://brainly.com/question/22817140

#SPJ1

Answer: Increasing atomic masses

Explanation: Dmitri Mendeleev's periodic table was made in 1907 . He placed the elements in increasing order of their atomic masses to ensure that all the elements with the same chemical properties are kept in the same group.

Answer:

Explanation:

To calculate the molarity of the solution, we first need to determine the mass of calcium chloride (CaCl2) in 100 g of the solution.

If the solution is 22.3% calcium chloride by mass, this means that there are 22.3 g of CaCl2 in 100 g of the solution.

We can use the density of the solution to convert 100 g of the solution to its volume:

volume of 100 g of the solution = mass of the solution / density of the solution

volume of 100 g of the solution = 100 g / 1.20 g/mL = 83.3 mL

Now, we can calculate the molarity of the solution using the following formula:

molarity = moles of solute / volume of solution (in L)

The molar mass of CaCl2 is 40.08 + 2(35.45) = 110.98 g/mol. Therefore, the number of moles of CaCl2 in 22.3 g of the solution is:

moles of CaCl2 = 22.3 g / 110.98 g/mol = 0.2008 mol

The volume of the solution containing 22.3 g of CaCl2 is:

volume of solution = 83.3 mL / 1000 mL/L = 0.0833 L

Substituting these values into the formula for molarity, we get:

molarity = 0.2008 mol / 0.0833 L = 2.41 M

Therefore, the molarity of the aqueous solution that is 22.3% by mass calcium chloride is 2.41 M.

Answer:

a. The Zn and HCl both retained their identity.

Answer:

municipal

Explanation:

I got state and federal wrong and after it told me it was municipal and if you where wondering I got the answers wrong on purpose to answer this one the fastest but at least I am going you the correct answer not like other people who just say a answer just because they want to but I actually got the right answer but yeah. BYEEEEEE

Answer:

municipal

Explanation:

did it and got it right

i hope you have you a great day

Explanation:

homogeneous mixture is a type of mixture in which the composition is uniform

Answer:

Water, Steel, Paint, etc.

Explanation:

Homogeneous Mixtures can be gas, solid, or liquid

The concentration of Oxalic Acid is 0.2625 M.

A kinetic experiment is conducted to determine the rate law of a reaction. The concentration of Oxalic Acid can be calculated using the given amount of the reactants and the volume of the test tube. A balanced chemical equation can be used to find the stoichiometric ratio of the reactants in the given reaction.The balanced chemical equation for the reaction is:5 H2C2O4 + 2 KMnO4 + 3 H2SO4 → 10 CO2 + 2 MnSO4 + 8 H2OThe stoichiometric ratio between Oxalic Acid and Potassium Permanganate is 5:2. The Oxalic Acid is the limiting reactant, and Potassium Permanganate is in excess.The amount of Oxalic Acid in the solution can be calculated using the formula:molarity = moles of solute / volume of solution in L.The moles of Oxalic Acid can be calculated using the formula:moles of H2C2O4 = Molarity of H2C2O4 x Volume of H2C2O4 in L= 0.525 M x 0.006 L= 0.00315 moles.

The volume of the solution after the addition of the reactants is:6.00 mL of 0.525 M Oxalic Acid + 4.00 mL of distilled water + 2.00 mL of 0.200 M KMnO4= 12.00 mLThe concentration of Oxalic Acid in the solution can be calculated using the formula:Molarity of H2C2O4 = moles of H2C2O4 / volume of solution in L= 0.00315 moles / 0.012 L= 0.2625 M.

for such more questions on Acid

https://brainly.com/question/27915098

#SPJ8

The correct name for CCl4 Carbon tetrachloride.

CCl4 is assessed as a volatile natural compound. CCl4 is a clear, non-flammable, and heavy liquid that evaporates readily. Although CCl4 does not arise naturally, it's far ubiquitous because of industrial uses.

CCl4 consists of non-polar covalent bonds between carbon and chlorine. It has a molecular weight of 153.81 gms per mole, and a density of about 1.5867 gms per cubic centimeter. CCl4 also crystallizes in a monoclinic crystal lattice.

Carbon tetrachloride or CCl4 is used for:-

To learn more about Carbon tetrachloride,

https://brainly.com/question/10963193

Gravity causes spacecraft such as stars, planets, moons, and other bodies to orbit one another. Revolution describes this style of movement.

To Learn more About Gravity refer To:

https://brainly.com/question/557206

#SPJ1

The number of electrons is revealed by the atomic number. This indicates that an aluminum atom contains 13 electrons. Eight electrons make up shell 1, eight electrons make up shell 2, and three electrons make up shell 3. The correct option is C.

Each subsequent shell that surrounds the nucleus of an atom's electrons is placed farther away from the nucleus. Atomic orbitals make up one or more of the one or more subshells that make up an electron shell.

The first two electrons in aluminum fall into the 1s orbital, followed by the next two electrons into the 2s orbital. The following six electrons complete the second shell's 2p orbital. The 3s orbital is then filled by electrons 11 and 12. The 3p orbital is now occupied by the final electron.

Thus the correct option is C.

To know more about electron shells, visit;

https://brainly.com/question/30464976

#SPJ6

Answer:

The change in pH is 0.04.

Answer:

i think C  is the answer

Explanation:

The change in average annual temperatures on earth will be due to "photosynthesis by plants and algae".

Photosynthesis can be defined as a process in which plants, as well as other organisms, as well as other organisms, utilize to transform sunlight into chemical energy which can then be released to power the organism's activities using cellular respiration.

Plants seem to be mostly photosynthetic eukaryotes belonging to the plantae kingdom.

Therefore, photosynthesis cannot change in average annual temperature on Earth.

To know more about photosynthesis.

https://brainly.com/question/1388366

#SPJ2

Answer:

D. From the equator to cooler parts of Earth

Explanation:

Thermal energy is always transferred from an area with a higher temperature to an area with a lower temperature. Moving particles transfer thermal energy through a fluid by forming convection currents.

Answer:

B. From the surface of the ocean to the bottom

D. From the equator to cooler parts of Earth

Explanation:

Test approved

The false statement about the gas expansion process is "∆S(system)=0".

When the gas expands into the vacuum, it undergoes an irreversible process. The gas molecules move from a region of high concentration to a region of low concentration, and as a result, there is an increase in entropy (∆S) of the gas.

According to the Second Law of Thermodynamics, the entropy of an isolated system will always increase for an irreversible process. Therefore, the entropy of the system, in this case, the gas, increases as it expands into the vacuum. The false statement about the gas expansion process is "∆S(system)=0". The other statements are true for this process. Since there is no temperature difference between the gas and the surroundings, the change in temperature is zero (∆T=0). The change in internal energy (∆E) is also zero since the gas is expanding against no external pressure. Finally, since there is no heat transfer between the system and the surroundings, the work done (∆PE + ∆KE) is equal to the heat transfer (w = q).

for more questions on gas
https://brainly.com/question/25736513
#SPJ11

Answer:

ΔG=ΔG0+RTlnQ where Q is the ratio of concentrations (or activities) of the products divided by the reactants. Under standard conditions Q=1 and ΔG=ΔG0 . Under equilibrium conditions, Q=K and ΔG=0 so ΔG0=−RTlnK . Then calculate the ΔH and ΔS for the reaction and the rest of the procedure is unchanged.

Explanation:

Lithium and sodium are in the same group because they both have the same number of valence electrons, the group is known as the alkali metals group. Inorganic sodium salts include sodium chloride, which is an inorganic chloride.

Beryllium, Magnesium, Calcium, Barium, Strontium, and Radium are among the Group 2 alkaline earth metals, which are soft silver metals with a less metallic appearance than the Group 1 alkali metals.

Our body utilizes sodium chloride (NaCl), sometimes referred to as salt, to transport and absorb nutrients. uphold blood pressure. keep the fluid in the proper equilibrium. send nerve signals

To know more about alkali metals visit:-

https://brainly.com/question/5063184

#SPJ13

Answer:

HNO3 - this is a strong acid and dissociation equation is HNO3(aq) → H+(aq) + NO3- (aq) H2SO4 - This is not so simple: H2SO4 is a diprotic acid .

Explanation:

Does that work. Let me know

Hope this helps :)

The acid ionization reaction for H₂SO\(_4\) is  H\(_2\)SO\(_4\) (aq) → 2H⁺ (aq) + SO\(_4\)²⁻(aq). H₂SO\(_4\) is a dibasic acid.

Any process through which electrically neutral molecules or atoms are changed into electrically charged molecules or atoms (ions) through the gain or loss of electrons is referred to as ionisation in chemistry and physics. One of the main mechanisms by which radiation, including charged particles and X-rays, transmits their energy to matter is ionisation.

Whenever an electric current is run through gases at low pressures, ionisation by collision occurs. If the current's electrons have enough energy, they can push additional electrons from neutral gas molecules, creating ion pairs that are made up of a detached negative electron and the consequent positive ion. The acid ionization reaction for H₂SO\(_4\) is  H\(_2\)SO\(_4\) (aq) → 2H⁺ (aq) + SO\(_4\)²⁻(aq).

Therefore, the acid ionization reaction for H₂SO\(_4\) is  H\(_2\)SO\(_4\) (aq) → 2H⁺ (aq) + SO\(_4\)²⁻(aq).

To know more about acid ionization reaction, here:

https://brainly.com/question/29614811

#SPJ2

Answer:

Volume = 3.4 L

Explanation:

In order to calculate the volume of CO₂ produced when 15.2 g of CaCO₃ is heated, we need to first write out the balanced equation of the thermal decomposition of CaCO₃:

CaCO₃ (s) + [Heat] ⇒ CaO (s) + CO₂ (g)

Now, let's calculate the number of moles in 15.2 g CaCO₃:

mole no. = \(\mathrm{\frac{mass}{molar \ mass}}\)

                 = \(\frac{15.2}{40.1 + 12 + (16 \times 3)}\)

                 = 0.1518 moles

From the balanced equation above, we can see that the stoichiometric molar ratios of CaCO₃ and CO₂ are equal. Therefore, the number of moles of CO₂ produced is also 0.1518 moles.

Hence, from the formula for the number of moles of a gas, we can calculate the volume of  CO₂:

mole no. = \(\mathrm{\frac{Volume \ in \ L}{22.4}}\)

⇒ \(0.1518 = \mathrm{\frac{Volume}{22.4}}\)

⇒ Volume = 0.1518 × 22.4

                 = 3.4 L

Therefore, if 15.2 g of CaCO₃ is heated, 3.4 L of CO₂ is produced at STP.

Answer: When silver is exposed to sulfur-containing gases in the air, it discolours and then darkens as it reacts with the gas to form a surface layer of tarnish. This process is called tarnishing.

Hope this helped :)

The lines that provide evidence for the theme of good versus evil in this excerpt from Shakespeare's Richard III are:

"I am determined to prove a villain

And hate the idle pleasures of these days."

The evidence for the theme of good versus evil in Shakespeare's Richard III is found in the lines:

These lines reveal Richard's determination to act as a villain and oppose the happiness and pleasures of the other characters, indicating a conflict between good and evil.

Additionally, Richard describes himself as "deformed" and "unfashionable," which suggests that he sees himself as an outsider and may justify his villainous actions as a means of seeking revenge against those who have rejected him.

This further reinforces the theme of good versus evil in the play, as Richard's desire for power and revenge is pitted against the moral values and well-being of the other characters.

Learn more about Shakespeare's Richard III at: https://brainly.com/question/2426450

#SPJ1

Complete question:

Which lines in this excerpt from Shakespeare's Richard III provide evidence for the theme of good versus evil in the play?

RICHARD III (Duke of Gloucester): Now is the winter of our discontent Made glorious summer by this sun of York; And all the clouds that lour'd upon our house In the deep bosom of the ocean buried. Now are our brows bound with victorious wreaths; Our bruised arms hung up for monuments; Our stern alarums changed to merry meetings, Our dreadful marches to delightful measures. Grim-visaged war hath smooth'd his wrinkled front; And now, instead of mounting barded steeds To fright the souls of fearful adversaries, He capers nimbly in a lady's chamber To the lascivious pleasing of a lute. But I, that am not shaped for sportive tricks, Nor made to court an amorous looking-glass; 1, that am rudely stamp'd, and want love's majesty To strut before a wanton ambling nymph; 1, that am curtail'd of this fair proportion, Cheated of feature by dissembling nature, Deformed, unfinish'd, sent before my time Into this breathing world, scarce half made up. And that so lamely and unfashionable That dogs bark at me as I halt by them; Why, I, in this weak piping time of peace, Have no delight to pass away the time, Unless to spy my shadow in the sun And descant on mine own deformity: And therefore, since I cannot prove a lover, To entertain these fair well-spoken days, I am determined to prove a villain And hate the idle pleasures of these days.

Answer:

methane

Explanation: methane is obtained from the decaying of flora and fauna mostlyunder damp

Increase in the density of the gummy bear if it soaked in isopropanol.

We expect the density of the gummy bear to increase if we soaked it in isopropanol because the gummy bear absorb the liquid which increase its density due to increasing weight or mass of the gummy bear.

If a substance gains weight then its density also increases and we know that when the gummy bear was soaked in the isopropanol then its weight increases so its density is also changes so we can conclude that change occurs in the density of the gummy bear to change if we soaked it in isopropanol.

Learn more about density here: https://brainly.com/question/1354972

The amount of copper in moles in the 27.5 g pure copper sheet is approximately 0.433 moles.

To calculate the amount of copper in moles in a pure copper sheet, we need to use the molar mass of copper and the given mass of the sheet.

The molar mass of copper (Cu) is approximately 63.55 g/mol. This value represents the mass of one mole of copper atoms.

Given that the mass of the pure copper sheet is 27.5 g, we can calculate the number of moles using the following formula:

moles = mass / molar mass

Substituting the values:

moles = 27.5 g / 63.55 g/mol

moles ≈ 0.433 mol

Therefore, the amount of copper in moles in the 27.5 g pure copper sheet is approximately 0.433 moles.

To arrive at this result, we divided the given mass of the sheet (27.5 g) by the molar mass of copper (63.55 g/mol). This calculation allows us to convert the mass of the sheet into the corresponding number of moles of copper.

The result tells us that the 27.5 g pure copper sheet contains approximately 0.433 moles of copper atoms. This conversion to moles is useful in various chemical calculations and allows for easier comparison and analysis of quantities on a molecular scale.

for more such question on copper visit

https://brainly.com/question/29176517

#SPJ8

Answer:2

Explanation: Acids do indeed conduct electricity (Love the one peice pfp btw)